Lindsay Lohan is preparing herself for the release of a sex tape that's making the rounds in L.A. — apparently, by attending a sex toy launch at the Hollywood club Voyeur in a low-cut, see-through top with no bra.

Supposedly a waiter with a "well-known chain restaurant" (Applebee's? Denny's?) sold a 47-second tape taken years ago of Linds frolicking naked with some dude to an "offshore porn site." "This video file is dynamite. It is pretty seedy and shows Lindsay engaged in a particular sex act which, obviously, should remain behind closed doors," says a source. "If and when it is released on the internet, via a spurious, unofficial website, there is absolutely nothing she or her lawyers can do about it." Will this finish off her career or give her a Kardashian-esque boost? [Daily Mail]

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Tila Tequila's rep just quit. (Who could blame her?) Jessica Cohen says, "Some matters need to remain private and away from media attention ... I realized we need to part ways while she deals with the loss of her fiancee." [TMZ]

Does this mean Cohen isn't a fan of Tila Tequila's creepy Casey Johnson comment of the day? Here's today's: "I would like to see her right now. Right now. But if that's not going to happen, then I hope she hears me when I scream out for her at night when I can't sleep." [Us]

Conan O'Brien was photographed walking the streets of L.A. holding a guitar and looking sad. [TMZ]

Conan O'Brien's last night hosting The Tonight Show will probably be next Friday. The show was already scheduled to go on hiatus for the Olympics. [People]

Sources say Jay Leno worked out a new deal with NBC that will let him host his show from 11:35 to 12:35. It's unclear if it will be called the Jay Leno Show or the Tonight Show. [TMZ]

Charlie Sheen's lawyer asked a judge if he could just modify his protection order in chambers rather than in a court room because "Obviously, both Ms. Sheen and Mr. Estevez do not wish this to become a media circus and would, as much as possible, like to have their privacy respected understanding that they are celebrity figures so there is a public interest and the necessity of media coverage." [TMZ]

Travis Barker settled his lawsuit against the jet-charter company Clay Lacy Aviation for the fatal 2008 plane crash he was injured in. [Radar]

DJ AM's estate has also settled its lawsuit against various companies involved with the crash. [TMZ]

Aboriginal elders want Prince William to help them find the decapitated head of the warrior Pemulwuy, which is stored in a jar somewhere in England, and return it to Australia. [News.com.au]

Real Housewife Teresa Giudice's husband was charged with DWI this morning after crashing his car into a pole, then police from another town arrested him for several outstanding warrants. He's out on bail. [TMZ]

Here are some possible Lost spoilers from Josh Holloway and Evangeline Lilly. [E!]

The Susan Boyle biography Dreams Can Come True will be published on February 9. [Publishers Weekly]

Kelis is taking Nas to court because she claims he owes her $56,911.50 in spousal and child support. [TMZ]

A source says Shaquille O'Neal would often deposit $10,000 into his mistress' bank account. "Shaq always gave the impression that he had a lot of girlfriends," said the source. "And that his wife knew about them and was OK with it, to a certain extent." [Radar]

Gilbert Arenas of the Washington Wizards has been charged with carrying a pistol without a license, which is a felony. [TMZ]

How the mighty has fallen: Here's a picture of Jon Gosselin grilling a hot dog on the hood of his car. [Radar]

The release date for Mariah Carey's new album Angels Advocate has been pushed back from February 23rd to March 9th. [Perez]

An insider says LeAnn Rimes spends her days lurking on the set of Eddie Cibrian's show CSI: Miami to make sure he doesn't cheat. "Eddie seems to be uncomfortable with LeAnn's constant presence. He's always telling her to stay in his dressing room, but whenever he walks out on set, she's right behind him," says the source. [In Touch]

Miley Cyrus, Kristen Bell, Josh Duhamel, and the Jonas Brothers will present at the Grammys. [People]

Brendan Fraser says of his new film Extraordinary Measures, in which he plays a real-life dad who raised money to fight his children's genetic disorder, "You rarely get a chance to play a living, breathing human, unless you're a comedian lampooning someone or you're doing a well-known figure. John Crowley is not a celebrity, per se, although he is known in the scientific community. He's a person who absolutely would not take 'no' for an answer. He's easily one of the most principled people I've met. He's resourceful. And it's not exactly that he won't take 'no' for an answer. He'll take a maybe and turn it into a yes." [Reuters]

Mark Wahlberg says of playing the father whose daughter is murdered in The Lovely Bones, "That's what I need to do to get there ... Think about something horrible... It's not a fun thing to do – that's the thing that bothered me the most." [People]

Could Snooki have been on Girls Next Door? "I love Snooki," says Holly Madison, "She's a pickle sucker!" Bridget Marquardt adds, "She's so funny. She's just being herself and that's just who she is." [E!]

"Both of my parents told me leave the performance on the stage. Give the fans everything they hoped for, but once the show is over, go have a burger." — Liza Minnelli. [Fox News]

Ricky Gervais announced on his blog that he's quitting Twitter. He writes: "I just don't get it I'm afraid. I'm sure it's fun as a networking device for teenagers but there's something a bit undignified about adults using it. Particularly celebrities who seem to be showing off by talking to each other in public. If I want to tell a friend, famous or otherwise what I had to eat this morning, I'll text them. And since I don't need to make new virtual friends, it seemed a bit pointless to be honest." [Daily Express]